Fix: Multi-Select should close when an operation succeeds. A little refactoring, too.

app/assets/javascripts/discourse/controllers/modal_controller.js

@@ -1,7 +1,7 @@
 /**
   This controller supports actions related to showing modals
 
-  @class ModalController 
+  @class ModalController
   @extends Discourse.Controller
   @namespace Discourse
   @module Discourse

app/assets/javascripts/discourse/controllers/topic_controller.js

@@ -83,20 +83,20 @@ Discourse.TopicController = Discourse.ObjectController.extend({
     if (!modalController) return;
 
     modalController.show(Discourse.MoveSelectedView.create({
+      topicController: this,
       topic: this.get('content'),
-      selectedPosts: this.get('selectedPosts')
+      selectedPosts: this.get('selectedPosts'),
     }));
   },
 
   deleteSelected: function() {
     var topicController = this;
-    return bootbox.confirm(Em.String.i18n("post.delete.confirm", {
-      count: this.get('selectedCount')
-    }), function(result) {
+    return bootbox.confirm(Em.String.i18n("post.delete.confirm", { count: this.get('selectedCount')}), function(result) {
       if (result) {
         var selectedPosts = topicController.get('selectedPosts');
         Discourse.Post.deleteMany(selectedPosts);
         topicController.get('content.posts').removeObjects(selectedPosts);
+        topicController.toggleMultiSelect();
       }
     });
   },

app/assets/javascripts/discourse/models/topic.js

@@ -451,10 +451,15 @@ Discourse.Topic.reopenClass({
 
   // Create a topic from posts
   movePosts: function(topicId, title, postIds) {
-    return Discourse.ajax("/t/" + topicId + "/move-posts", {
+
+    var promise = Discourse.ajax("/t/" + topicId + "/move-posts", {
       type: 'POST',
       data: { title: title, post_ids: postIds }
+    }).then(function (result) {
+      if (result.success) return result;
+      promise.reject();
     });
+    return promise;
   },
 
   create: function(obj, topicView) {

app/assets/javascripts/discourse/views/modal/modal_body_view.js

@@ -10,10 +10,8 @@ Discourse.ModalBodyView = Discourse.View.extend({
 
   // Focus on first element
   didInsertElement: function() {
-    var _this = this;
-    Em.run.next(function() {
-      _this.$('form input:first').focus();
-    });
+    var modalBodyView = this;
+    Em.run.next(function() { modalBodyView.$('form input:first').focus(); });
   },
 
   // Pass the errors to our errors view
@@ -25,9 +23,8 @@ Discourse.ModalBodyView = Discourse.View.extend({
   // Just use jQuery to show an alert. We don't need anythign fancier for now
   // like an actual ember view
   flash: function(msg, flashClass) {
-    var $alert;
     if (!flashClass) flashClass = "success";
-    $alert = $('#modal-alert').hide().removeClass('alert-error', 'alert-success');
+    var $alert = $('#modal-alert').hide().removeClass('alert-error', 'alert-success');
     $alert.addClass("alert alert-" + flashClass).html(msg);
     $alert.fadeIn();
   }

app/assets/javascripts/discourse/views/modal/modal_view.js

@@ -16,26 +16,19 @@ Discourse.ModalView = Ember.ContainerView.extend({
     templateName: 'modal/modal_header',
     titleBinding: 'controller.currentView.title'
   }),
+  modalBodyView: Ember.ContainerView.create({ currentViewBinding: 'controller.currentView' }),
+  modalErrorsView: Ember.View.create({ templateName: 'modal/modal_errors' }),
 
-  modalBodyView: Ember.ContainerView.create({
-    currentViewBinding: 'controller.currentView'
-  }),
-
-  modalErrorsView: Ember.View.create({
-    templateName: 'modal/modal_errors'
-  }),
-
-  viewChanged: (function() {
-    var view,
-      _this = this;
+  viewChanged: function() {
     this.set('modalErrorsView.errors', null);
-    if (view = this.get('controller.currentView')) {
+
+    var view = this.get('controller.currentView');
+    var modalView = this;
+    if (view) {
       $('#modal-alert').hide();
-      return Em.run.next(function() {
-        return _this.$().modal('show');
-      });
+      Em.run.next(function() { modalView.$().modal('show'); });
     }
-  }).observes('controller.currentView')
+  }.observes('controller.currentView')
 
 });
 

app/assets/javascripts/discourse/views/modal/move_selected_view.js

@@ -11,41 +11,36 @@ Discourse.MoveSelectedView = Discourse.ModalBodyView.extend({
   title: Em.String.i18n('topic.move_selected.title'),
   saving: false,
 
-  selectedCount: (function() {
+  selectedCount: function() {
     if (!this.get('selectedPosts')) return 0;
     return this.get('selectedPosts').length;
-  }).property('selectedPosts'),
+  }.property('selectedPosts'),
 
-  buttonDisabled: (function() {
+  buttonDisabled: function() {
     if (this.get('saving')) return true;
     return this.blank('topicName');
-  }).property('saving', 'topicName'),
+  }.property('saving', 'topicName'),
 
-  buttonTitle: (function() {
+  buttonTitle: function() {
     if (this.get('saving')) return Em.String.i18n('saving');
     return Em.String.i18n('topic.move_selected.title');
-  }).property('saving'),
+  }.property('saving'),
 
   movePosts: function() {
-    var postIds,
-      _this = this;
     this.set('saving', true);
-    postIds = this.get('selectedPosts').map(function(p) {
-      return p.get('id');
-    });
+
+    var postIds = this.get('selectedPosts').map(function(p) { return p.get('id'); });
+    var moveSelectedView = this;
+
     Discourse.Topic.movePosts(this.get('topic.id'), this.get('topicName'), postIds).then(function(result) {
-      if (result.success) {
-        $('#discourse-modal').modal('hide');
-        Em.run.next(function() {
-          Discourse.URL.routeTo(result.url);
-        });
-      } else {
-        _this.flash(Em.String.i18n('topic.move_selected.error'));
-        return _this.set('saving', false);
-      }
+      // Posts moved
+      $('#discourse-modal').modal('hide');
+      moveSelectedView.get('topicController').toggleMultiSelect();
+      Em.run.next(function() { Discourse.URL.routeTo(result.url); });
     }, function() {
-      _this.flash(Em.String.i18n('topic.move_selected.error'));
-      return _this.set('saving', false);
+      // Error moving posts
+      moveSelectedView.flash(Em.String.i18n('topic.move_selected.error'));
+      moveSelectedView.set('saving', false);
     });
     return false;
   }